Lights of the Desert.

When the other members of a stranded theatrical company pool their funds to return to San Francisco, Yvonne Laraby remains in Colt City, Nevada, at the request of Andrew Reed, an oil company foreman, to consider his marriage proposal. There she meets oil well owner Clay Truxall, a former acquaintance, who asks her to become his secretary. Yvonne falls in love with Truxall and persuades Reed to return to his sweetheart, Marie Curtis, whom he had deserted for Yvonne.